using C1.Win.C1FlexGrid;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml;
using VEPROMS.CSLA.Library;
using Volian.Controls.Library;

namespace XMLConvert
{
	public partial class frmConvertXML
	{
		private static void LoadTable2(XmlNode xn, StepLookup mySteps, int level)
		{
			XmlNode xn2 = xn.SelectSingleNode("tr/td/table");
			if (xn2 != null) xn = xn2;
			VlnFlexGrid fg = _MyFlexGrid;
			fg.Font = new Font("Arial", 11, FontStyle.Regular, GraphicsUnit.Point);
			fg.Clear();
			fg.Rows.Count = 1;
			fg.Cols.Count = 1;
			int rows = 0;
			fg.MergedRanges.Clear();
			foreach (XmlNode xr in xn.ChildNodes)
			{
				if (xr.Name == "tr")
				{
					++rows;
					AddTableRow(xr, fg, rows);
				}
			}
			fg.MyBorders = new VlnBorders(GridLinePattern.Single, fg.Rows.Count, fg.Cols.Count);
			fg.BringToFront();
			fg.Invalidate();
			Application.DoEvents();
			fg.MakeRTFcells();
			//Well, Can I save the table
			using (Step step = MakeCSLAStep(mySteps, mySteps.Count, null, "table", 20008, E_FromType.Table))
			{
				Grid.MakeGrid(step.MyContent, fg.GetXMLData(), "");
			}
		}
		public static VlnFlexGrid _MyFlexGrid = null;
		private static void AddTableRow(XmlNode xr, VlnFlexGrid fg, int rows)
		{
			if (rows > fg.Rows.Count)
				fg.Rows.Count = rows;
			int cols = 0;
			foreach (XmlNode xc in xr.ChildNodes)
			{
				++cols;
				//if (xc.InnerText.Contains("RC-V200"))
				//	Console.WriteLine(xc.InnerText);
				//if (xc.InnerText.Contains("RC-V121"))
				//	Console.WriteLine(xc.InnerText);
				//if (xc.InnerXml.Contains("AB 137") || xc.InnerXml.Contains("3013N01"))
				//	Console.WriteLine("here");
				CellRange cr2 = GetMyMergedRange(fg, rows - 1, cols - 1);
				//Console.WriteLine("Check {0}", cr2);
				while (cr2.c1 != cols - 1 || cr2.r1 != rows - 1)
				{
					cols++;
					cr2 = GetMyMergedRange(fg, rows - 1, cols - 1);
				}
				AddMergedCells(fg, rows, cols, xc);
				//ShowMergedCells(fg);
				if (xc.Name == "td")
				{
					AddTableColumn(xc, fg, rows, cols);
				}
			}
		}
		private static void ShowMergedCells(VlnFlexGrid fg)
		{
			for (int r = 0; r < fg.Rows.Count; r++)
			{
				for (int c = 0; c < fg.Cols.Count; c++)
				{
					CellRange cr3 = GetMyMergedRange(fg, r, c);
					if (fg.MergedRanges.Contains(cr3))
						Console.WriteLine("*** cr3 r={0},c={1},rng={2}", r, c, cr3);
				}
			}
		}
		private static int GetSpan(string span)
		{
			int retval = int.Parse("0" + (span ?? ""));
			if (retval == 0) return 0;
			return retval - 1;
		}
		private static void AddMergedCells(VlnFlexGrid fg, int rows, int cols, XmlNode xc)
		{
			string colspan = GetAttribute(xc, "colspan");
			string rowspan = GetAttribute(xc, "rowspan");
			if (colspan != null || rowspan != null)
			{
				//AddMergedRanges
				int r1 = rows;
				int c1 = cols;
				int r2 = r1 + GetSpan(rowspan);
				if (r2 > fg.Rows.Count) fg.Rows.Count = r2;
				int c2 = c1 + GetSpan(colspan);
				if (c2 > fg.Cols.Count) fg.Cols.Count = c2;
				CellRange cr = new CellRange();
				cr.r1 = r1 - 1;
				cr.r2 = r2 - 1;
				cr.c1 = c1 - 1;
				cr.c2 = c2 - 1;
				fg.MergedRanges.Add(cr);
				//Console.WriteLine("Merged {0}", cr);
			}
		}

		private static CellRange GetMyMergedRange(VlnFlexGrid fg, int r, int c)
		{
			foreach (CellRange cr in fg.MergedRanges)
			{
				if (cr.r1 <= r && cr.r2 >= r && cr.c1 <= c && cr.c2 >= c)
					return cr;
			}
			return fg.GetMergedRange(r, c);
		}
		private static Regex regNumber = new Regex("^[0-9]+$", RegexOptions.Compiled);
		private static void AddTableColumn(XmlNode xc, VlnFlexGrid fg, int rows, int cols)
		{
			//Console.WriteLine("Rows {0}, Cols {1}", rows, cols);
			if (cols > fg.Cols.Count)
				fg.Cols.Count = cols;
			string width = GetAttribute(xc, "width");
			if (width != null && width != "" && regNumber.IsMatch(width))
			{
				if (width.EndsWith("%"))
					fg.Cols[cols - 1].Width = (int)(int.Parse(width.Replace("%", "")) * 96 * 6.5F / 100);
				else
					fg.Cols[cols - 1].Width = int.Parse(width) * 96 / 72;
			}
			StringBuilder sb = new StringBuilder();
			string prefix = "";
			foreach (XmlNode xn in xc.ChildNodes)
			{
				if (xn.Name == "p")
				{
					sb.Append(prefix + xn.InnerText);
				}
				if (xn.Name == "ul")
				{
					foreach (XmlNode xn2 in xn.ChildNodes)
					{
						if (xn2.Name == "li")
						{
							sb.Append(prefix + "*" + xn.InnerText);
						}
						if (xn2.Name == "p")
						{
							sb.Append(prefix + xn.InnerText);
						}
					}
				}
			}
			if (width != null && width != "" && !regNumber.IsMatch(width))
			{
				Console.WriteLine("*** width is not a number {0}, rows {1}, cols {2}, Text='{3}'", width, rows, cols, xc.OuterXml);
			}
			fg[rows - 1, cols - 1] = sb.ToString();
		}
	}
}